i did this to my old zetec and today to my pzev. this thing was really annoying. i do wear my seat belt all the time on the road but when im driving in my yard or parking lots, or just up the block, i dont want that thing going off every 30 seconds! i give credit to ford for giving us the ability to disable it. its a complicated exercise though, and i was waiting to see if they wanted me to touch my toes too.